Preparation and properties of new anode material Pt-Ru/CMK-3

被引：0

作者：

Cao Jie-Ming ^{[1
]}

Wu Wei

Chen Yu

Liu Jing-Song

Cao Yu-Lin

He Jian-Ping

Tang Ya-Wen

Yang Chun

Lu Tian-Hong

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Technol, Nanjing 210016, Peoples R China

[2] Nanjing Normal Univ, Dept Chem, Nanjing 210097, Peoples R China

来源：

ACTA CHIMICA SINICA | 2007年 / 65卷 / 12期

关键词：

DMFC; Pt-Ru/CMK-3; complexing reaction; mesoporous material; electrocatalytic for oxidation of methanol; METHANOL FUEL-CELLS; CARBON; PLATINUM; NANOPARTICLES; OXIDATION; CATALYST;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

High-alloying Pt-Ru solid solution was firstly prepared by complexing reaction and uniformly dispersed on rigid ordered mesoporous carbon CMK-3 to form the two-element compound catalysts. XRD patterns show that Pt atoms with f.c.c structure are almost replaced by Ru atoms with h.c.p structure. XRD, TEM and nitrogen adsorption isotherm measurements indicate that the average diameter was 3.2 nm with uniform size. The electrocatalytic activity of Pt-Ru/CMK-3 for the ethanol oxidation was studied and compared with that of Pt-Ru/XC-72 of E-TEK congeneric catalyst. The results showed that the catalyst of Pt-Ru/CMK-3 possessed bigger electrocatalytic activity area, and the electrocatalytic activity for the oxidation of methanol and the ability of resisting CO poison exceeded the same kind of catalysts because of the appropriate extent of alloying and average particle diameter.

引用

页码：1117 / 1122

页数：6